What is a key benefit of using circuit breakers over fuses?

• A. Circuit breakers are less expensive
• B. Circuit breakers can be reset when blown
• C. Circuit breakers take up less space
• D. Circuit breakers require no maintenance

Answer: (B)

One of the key benefits of using circuit breakers is that they can be reset when they trip, making them more convenient than fuses, which must be replaced once they blow. This reset capability allows for quick restoration of power without the need for additional equipment or materials. If a circuit breaker trips due to an overload or a short circuit, the user can simply flip the switch back to the "on" position after addressing the underlying issue, whereas a blown fuse requires the replacement of the fuse itself, which can be time-consuming and potentially inconvenient. This ease of use and practical functionality make circuit breakers a favored choice for modern electrical systems.